From: Cyril Plisko <cyril.plisko@mountall.com>
Date: Wed, 24 Oct 2012 10:26:56 +0000 (+0200)
Subject: zfs_scrub_limit tunable is not used anywhere
X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=commitdiff_plain;h=4f34b3bdf4ced8f808f6cd928b87bd42ea3039fe;hp=ee664d463189d6302877461967afe21ce9d861a0;p=zfs.git

zfs_scrub_limit tunable is not used anywhere

As a part of scrub/resilver tuning zfs_scrub_limit fell out of use,
but the definition of the variable remained in place.
Moreover various guides still (misleadingly) mention it as a way
to influence resilver/scrub behavior.
This commit removes its finally.

Signed-off-by: Cyril Plisko <cyril.plisko@mountall.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1444
---

diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c
index 15ff30f..c44e4f6 100644
--- a/module/zfs/vdev.c
+++ b/module/zfs/vdev.c
@@ -61,9 +61,6 @@ static vdev_ops_t *vdev_ops_table[] = {
 	NULL
 };
 
-/* maximum scrub/resilver I/O queue per leaf vdev */
-int zfs_scrub_limit = 10;
-
 /*
  * Given a vdev type, return the appropriate ops vector.
  */
@@ -3241,7 +3238,4 @@ EXPORT_SYMBOL(vdev_degrade);
 EXPORT_SYMBOL(vdev_online);
 EXPORT_SYMBOL(vdev_offline);
 EXPORT_SYMBOL(vdev_clear);
-
-module_param(zfs_scrub_limit, int, 0644);
-MODULE_PARM_DESC(zfs_scrub_limit, "Max scrub/resilver I/O per leaf vdev");
 #endif